580K Power Shuttle No Forward

I have an early model 580K. I found out that gear oil had been added to the shuttle instead of hyd. oil. It was then driven on the road about 4 miles to a job with no problems. It was worked at the job for a good while then forward started slipping under a load and got progressively worse. I have since drained the shuttle and cleaned the suction screen, which was clogged, and refilled with good hyd. fluid.

This did make a difference in forward for a short time and then the slipping returned. I again drained, cleaned, and replaced fluid at least two more times with not much change. Reverse works fine the whole time.

Now the only forward movement it has is in first gear with no throttle. It will crawl on engine idle but when throttled up any will start slipping and movement will stop. You can manipulate the forward shuttle lever from neutral to forward and it will crawl a little better but slips at throttle up.

Is this the forward clutches that are gone? I have read about a spring that breaks in the shuttle sometimes, could that be the problem?
Again forward slips but reverse works fine and strong. Please Help?

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Re: 580K Power Shuttle No Forward AJ Friday, November 06, 2009 (0)
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